| Index: LayoutTests/fast/multicol/dynamic/insert-spanner-pseudo-after-then-content.html | 
| diff --git a/LayoutTests/fast/multicol/dynamic/insert-spanner-pseudo-after-then-content.html b/LayoutTests/fast/multicol/dynamic/insert-spanner-pseudo-after-then-content.html | 
| new file mode 100644 | 
| index 0000000000000000000000000000000000000000..a73d978be3640da2bd40d16ee60372ff9ed074b5 | 
| --- /dev/null | 
| +++ b/LayoutTests/fast/multicol/dynamic/insert-spanner-pseudo-after-then-content.html | 
| @@ -0,0 +1,19 @@ | 
| +<!DOCTYPE html> | 
| +<script> | 
| +    onload = function() { | 
| +        document.body.offsetTop; // trigger layout | 
| +        document.getElementById('elm').className = "x"; | 
| +    } | 
| +</script> | 
| +<style> | 
| +    .x::after { display:block; -webkit-column-span:all; background:yellow; content:".........."; } | 
| +</style> | 
| +<p>Test adding an ::after pseudo element that's a spanner. The DOM node is followed by more content, | 
| +    so we need to split the existing column row into two.</p> | 
| +<p>There should be three rectangles with identical sizes below. The first and third one | 
| +should be blue with nothing inside. The second one should be yellow with some dots | 
| +inside.</p> | 
| +<div style="-webkit-columns:4; line-height:100px; background:blue;"> | 
| +    <span id="elm"> </span> | 
| +      | 
| +</div> | 
|  |